Helping you rifle through other people's packages.
The DBPF2 file format is used for most of the content in the Sims 3 engine. This project provides a Java-based API, and supporting GUI application, to unpack, browse, edit and repack these files.

[2014-10-31] This project is obsolete, for latest version (6.1.3) see GitHub https://github.com/digital-preservation/droid (source) and http://www.nationalarchives.gov.uk/information-management/manage-information/preserving-digital-records/droid/ (binary)
DROID (Digital Record Object Identification) is an automatic file format identification tool. It is the first in a planned series of tools developed by The National Archives under the umbrella of its PRONOM technical registry service.
[2013-01-24] The binary download of the latest version of DROID has now been moved to The National Archives website: http://www.nationalarchives.gov.uk/information-management/projects-and-work/droid.htm
The source code for the latest version of DROID remains available via Github: http://digital-preservation.github.com/droid/
[2012-09-07] DROID 6.1 has been released. New project hosting for the project can be found on GitHub: http://digital-preservation.github.com/droid/

Chordii, formerly known as Chordie, creates elegant, printable stafless lead sheets for musicians needing only chords and lyrics. It processes plain text input in ChordPro format and it is the successor to the old though still popular Chord program.

Config is a package for parsing configuration files (.ini, .inf, .cfg, ...) and retrieving keys of various types. New values for single keys, or entire sections, can be set. Standalone and unconditionally portable code.

The OpenGL OBJ Loader is an 'OBJ' mesh loader & viewer.<br>It is written in C++ and uses OpenGL & SDL.<br>The project's second iteration reads vertex, normal, texture, and mtl data.<br>Note: the 'OBJ' file format is known by most modern 3D modelers.

A library of utility classes that simplify working with the XML APIs provided by the JDK. These have largely been developed to meet specific needs in the maintainers' other professional and personal projects. Requires JDK 1.5 or later.
Available from Maven Central:
<groupId>net.sf.practicalxml</groupId>
<artifactId>practicalxml</artifactId>